Reinking device for typewriter ribbons



Jan. 11, 1955 `cslluLLEr-:lvlo HERNANDEZ G. 2,699,245

REINKING DEVICE FCR TYPEWRITER RIBBONS Filed April 19, 1951 F-l G. 3.

INVENTOR/Vy G ulm/RMO HERNNDEZG ATTORNEY United States Patent O REINKINGDEVICE FOR TYPEWRITER RIBBONS Guillermo Hernndez G., Mexico City, MexicoApplication April 19, 1951, Serial No. 221,812

1 Claim. (Cl. 197-171) The invention relates to reinking devices for theribbons of typewriting machines, the ribbon in said machines being drawnfrom its supply spool by its rewinding spool. An object of the inventionis to provide such a reinking device comprising an inking rollerimpregnated with ink and three excess ink absorbing rollers around whichthe ribbon is drawn serpentinely, said ex cess ink absorbing rollersbeing spaced from one another by intervals respectively much wider thanthe thickness of the ribbon and exerting a frictional drag upon theribbon to effect intimate contact thereof with said rollers and saidinking roller, said intervals admitting of ready manipulation of theribbon in its application to the machine serpentinely around saidrollers, said excess ink absorbing rollers, said inking roller and saidsupply spool being grouped together and having a platform supportcapable of being mounted within the contracted space of the machinenormally occupied by the ribbon supply spool thereof.

The invention consists in the novel construction and combinations ofparts hereinafter set forth in the claim.

ln the accompanying drawings,

Figure 1 is a perspective view of the invention, the ribbon rewindingspool being omitted.

Figure 2 is a plan view of the invention on a larger scale, the ribbonrewinding spool being shown.

Figure 3 is a plan View of the invention as applied to the rear portionof a typewriting machine, said rear portion being shown conventionally,the key levers not being shown.

In the drawings, the numeral 1 designates the inking roller composed ofabsorbent material impregnated with ink, and 2 designates each of threeexcess ink absorbing rollers composed of absorbent material, the ribbon3 being drawn from its supply spool 4 serpentnely around the inkingroller and the excess ink absorbing rollers by the ribbon rewindingspool 5 of a typewriting machine 6. The excess ink absorbing rollers 2are spaced from one another by intervals 7 respectively much wider thanthe` thickness of the ribbon 3 and exert a frictional drag upon theribbon to effect intimate contact thereof with said rollers and with theinking roller, said intervals 7 admitting of ready manipulation of theribbon in its application to the machine serpentinely around saidrollers. The excess ink absorbing rollers 2 and the inking roller 1 aredisposed in inner and outercouples with the inking roller disposedbetween one of said rollers and said supply spool, said excess inkabsorbing rollers, said inking roller and said supply spool beinggrouped together and 2,699,245 Patented Jan. 11, 1955 ICC mounted upon aplatform support or base plate 10 capable of being mounted within thecontracted space 11 of the machine normally occupied by the ribbonsupply spool thereof. The mounting of the excess ink absorbing rollers2, the inking roller 1, and the ribbon supply spool 4 upon said baseplate 10 is accomplished by vertically fastening in spaced relationshipthe shafts for said rollers 1 and 2 and said supply spool 4 by theirlower ends only in said base plate.

lt has been proposed to provide three excess ink absorbing rollersspaced from one another by intervals respectively equal to the thicknessof the ribbon. In such ease the excess ink absorbing rollers tend torotate one another through the medium of the ribbon, thus lessening thefrictional drag exerted thereby upon the ribbon to effect intimatecontact thereof with said rollers and with the inking roller. Also insuch case, the ribbon in its application to the machine cannot bereadily manipulated serpentinely around said rollers, such manipulationbeing accomplished with dillculty and with added soiling of the fingersof the operator by the ink of the ribbon. Also in such case, the inkingroller, the excess ink absorbing rollers and the supply spool areincapable of being grouped together and provided with a platform supportcapable of being mounted within the contracted space of the machinenormally occupied by the ribbon supply spool thereof.

I claim:

A reinkng device for the ribbons of typewriting machines, comprising abase plate, an inking roller composed of absorbent material impregnatedwith ink and three excess ink absorbing rollers composed of absorbentmaterial mounted upon said base plate by vertically fastening in spacedrelationship the shafts for said rollers by their lower ends only insaid base plate, the ribbon being drawn from its supply spoolserpentinely around the inking roller and the excess ink absorbingrollers by its rewinding spool, said excess ink absorbing rollers beingspaced from one another by intervals respectively much wider than thethickness of the ribbon and exerting a frictional drag upon the ribbonto effect intimate contact thereof with said rollers and with the inkingroller, said intervals admitting of ready manipulation of the ribbon inits application to the machine serpentinely around said rollers, saidexcess ink absorbing rollers and said inking roller being disposed ininner and outer couples with the inking roller disposed between one ofsaid rollers and said supply spool, said rollers and said inking rollerbeing grouped together and capable of being mounted upon said base platewithin the contracted space of the machine normally occupied by theribbon supply spool thereof.

References Cited in the tile of this patent UNITED STATES PATENTS341,630 Bailey May 1l, 1886 933,593 Snell Sept. 7, 1909 1,358,083 LaskerNov. 9, 1920 1,846,498 Stephenson Feb. 23, 1932 FOREIGN PATENTS 345,370Germany lDec. 8, 1921

